Mechanism for converting rotary into vibrating motion



(NO Model 2 She ts S he'et 1 JJBARKER.

MECHANISM FOR CONVERTING ROTARY INTO VIJBRAT-ING MOTION.

No. 292,461. O Patented Jan 29, 1884.

. d v I (No Model.) v 2 Sheets-Sheet 2. I I J. BARKER.

MECHANISM FOR GONVER'IING ROTARY INTO VIBRATING MOTION.

Patented Jan. 29, 1884.

To aZZ whom it may concern:

UNITED STATE-S PATENT OFFICE.

JAMESBARKER, or PHILADELPHIA, PENNSYLVANIA.

MECHANISM FOR CONVERTING ROTARY INTO'VIBRATING MOTION.

IEPECIFICATION forming part of Letters Patent No. 292,461, dated -.Tanuary 29, 1E84=..

Be it known that I, J AMEs BARKER, a citizen of the United States, and a resident of Philadelphia, Pennsylvania, have invented certain Improvements in Mechanism for Converting Rotary into Vibrating Motion, of which the foilowing is a specification.

The main object of my invention is to so construct a device for converting rotary motion into vibrating motion that the same can be thoroughly lubricated and the parts readily adjusted, so as to compensate for wear, a further object being to. permit the casting of a forked arm on the vibrating shaft, instead of making the same separate therefrom, as usual. In the accompanying drawings, Figure 1,- Sheet 1, is aplan view of mechanism constructed in accordance with my invention, the upper half of the inclosing box or casing being removed. Fig. 2 is a transverse section on the line 1 2, Fig. 1,- Fig. 3, a longitudinal section I on the line 3 4, Fig. 1; Fig. 4, Sheet 2, alongitudinal section on the line 5 6, Fig. l, and

Figs. 5 and 6, detached perspective views of the two shafts.

A A represent the upper and lower halves of a box or casing, having bearings for the two shafts B and D, the shaft Bhaving a rotating movement and the shaft D a vibrating movement, derived from the shaft 13 through the medium of mechanism forming the subject of my invention. The shaft B is provided with a pulley, a, for receiving a belt from any adjacent driving-shaft, and said shaft B has a crank, I), and a conical collar, d. The shaft D projects beyond the casing at one end, and this projecting end of the shaft has a disk, e, to which may be connected the doffer-comb of acarding-machine, the cutter-bar of a mowing-machine, the shaking-table of a thrashingmachine, or any other device which has to receive motion from a rapidly-vibrated shaft.

On the shaft D is a forked arm, F, and to the forked portion of the arm is snugly fitted the two-part box f, which is carried by the crank b, the box being tapered in a direction the reverse of the conical collar d of the shaft, and the forked portion of the arm being beveled for the reception of said tapered box, as shown in Fig. 2, so that wear of both the box f and collar d is compensated for by setting up the shaft D endwise. This adjustment of the Application filed June 25.1883.. (No model.)

shaft D is effected by a set-screw, G, which is adapted to a threaded. opening in the casing A A and bears against the end of said shaft D, as shown. in Fig. 1. The crank b and forked arm F are contained within a chamber,

H, in the casing A A, and a supply of oil is deposited in said chamber for the lubrication of the various parts of the device, this oil being violently'agitatedfiy the, vibrating arm and rotating crank and by the counter-weight g on the crank-shaft, the oil thus finding its way to the bearings of both shafts B and D g and serving to keep the same constantly and 6 5 thoroughly lubricated. Any oil which may find its way through the bearings or through the joint between the two halves of the casing is caught in a groove, h, and returns to the chamber H through passages i. In order to lubricate the bearing between the set-screw G and the end of the shaft D, radial notches m are formed in the end of said shaft, as shown in Figs. 1 and 5. Owing to these provisions for thorough lubrication and to the simple means employed for compensating for wear and keeping the bearings tight, the device can be run at a very high rate of' speed without noise or jar, and the parts can be adjusted readily and without the exercise of any special 80.

the said screw G afterit has been properly ad-,

justed.

By providing the shaft B'with a single cone, (1, and taking up wear by'the adjustment of the shaft D, I dispense with the stuffing-boxes usually employed in devices of the class to 0 which my invention relates; and by dividing the casing or box horizontally through the shaft-bearings I am enabled to use a forked arm cast on the shaft D, instead of a separate arm secured thereto by aset-screw.

I claim as my invention- 1. The combination of the shaft 13, having a crank, b, and conical collar of, with the adjnstable shaft D, having aforked arm, F, beveled as described, and a box, f, tapered in a we the shaft D, having a forked arm, F, and the with the shafts B and D, the latter having the adjusting-screw G, bearing against the end of forked arm F cast therewith, as set forth. the shaft D, and adapted to a threaded open- I In testimony whereof Ihave signed my name ingin the casing, as set forth. to this specifieationin the presence of two sub- 5 3. The combination of the casing A A, havl scribing Witnesses.

in a chamber H, with the shaft D and its r foFked arm Fjand the shaft B with its crank I JAMES LARIXEI" I \Vitnesses: I HARRY L. ASIIENFELTER, IIARRY SMITH.

and counter-weight g, as set forth.

4. The combination of the casing A A, part- IO Cd horizontilly through the shaft-bearings, 

